Significant Customers (Tables)

6 Months Ended

Jun. 30, 2016

Risks and Uncertainties [Abstract]

Revenues attributable to sales to major customers

For the three and six months ended June 30, 2016 and 2015, the percentage of the Company’s revenues attributable to sales made to these customers was as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2016		2015		2016		2015
Avnet	29.9	%	28.2	%	28.3	%	27.7	%
Enel	—	%	10.7	%	7.9	%	9.3	%
Total	29.9	%	38.9	%	36.2	%	37.0	%